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Caleb started up a Mathamatis school with some friends in Alexandria, Egypt.
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Earned a PHD in maths at the University of Basel
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Caleb began publishing book and scientific articals, By 1988 he ha written over 120 books and 500 articals.
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Caleb started giving lectures for international groups, mostly in Europe, South America and Japan. Caleb also came to Australia to teach teachers about words in colour
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Caleb earned a Master of Arts in Education at the Univerity of London. Caleb also came to Australia to teach people about words in colour.
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Caleb Founded the International commission for the Study and Improvment of Mathamatics Education.
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Caleb earned a Doctarate in Philosaphey at the Univercity of Lille.
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Caleb paticipated in founding the Proffessers Mathamatics assiation
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Caleb worked with a man named Jean Piaget. Caleb trnslated two of Jean Piaget work from French to English.
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Founded the assiation for teaching Aids in Maths and it's journal "Matamatics Teaching" which is published 4 times a year.
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Caleb helped founder the Cuisenaire companey which made the Cuisenaire rods that helped children learn how to count. Caleb also became the comanies directer untill 1986.
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Caleb bcame a member of the United Nations. He was on a mission to Ethiopia with the object of finding a soultion to the promblem of illitercy.
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The new Release of the new film "Mathamatics at your fingertips"
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Caleb released the first English edition of "Wods in colour"
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Caleb founded the Educational soultion in New York, which is where he lived until he died.
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Cale began Publshing the Educationa Soution, which is released 5 times a year.
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Caleb died in Paris, France from caner he had for five years; Two weeks after givng a semanar. Caleb died at the age of 76.